Alloy



o e the uses to which the be to this a. 2, was. I

' .GEOE BENDER, 015 DETROIT, MIGAN.

ALLOY.

provide for this purpose a metal harder than v I an metal now on themarket and used for urpose.

It is another object of the invention to provide a metal which isfrictionless and will not heat under any speed or load to which thebearings are subjected. In this statement as to heating under any speedor load, ordinary normal working conditions are considered.

Another object of the invention is the provision of an alloy which willnot abrade or,

cut shaftings of steel or other metal, which as are rotating and withwhich it comes into contact.

Another object of the invention is the provision of a metal whereby agreater length of life of the metal may be provided, particularly whenit is used for bearings, bushings,

etc. Another object of the invention is theprovision of an alloy whichmay be remelted and.

' recast without affectin its physical pro ertiesor in any manner'minishing its uti ity.

Another object of the invention is the provision of a metal of thisclass which will melt at acomparatively low temperature.

Other objects will appear hereinaftenlowing ingredients, to wit: copper,tin, and lead. Theseingredients are used preferably in the followingproportions, to wit: 4 Copper 70 3/l0parts or 65 per cent. Tin 24 53/100parts or 29 per cent.

Leade 5 2/10 parts or 6 per cent.

' Application filed April 4,

The alloy'referred to consists of the'fol 1927. Serial No. 181,004.

Certain variations in the proportions may be provided, although I havefound the above proportions most desirable. I have also found thatsatisfactory results were obtained by mixing the ingredients in thefollowing proportions, to wit:

. i Per cent. Copper-a w Tin 18 Lead 7 In compounding the allo thecopper is melted. In a separate crucible the tin and lead are melted-andthe temperature of the alloy of the tin and lead is then raised to thedistilling or boiling point. While at this distilling or boiling point,the alloy of tin and:

lead is oured into the thoroug ly mixed. 4

The process of mixing these ingredients forms no part of this presentinvention, as the same is covered in a patent application of even dateherewith.

While I have illustrated and described the preferred compositionor'alloy, I do not wish to limit myself to the precise compositionherein set out, but desire to avail myself of such variations, andparticularly such variations in the proportions as will suggestthemselves, while remaining within the spirit of the inventionconsisting in the combining of copper, tin and lead for the purpose offorming a metal of this class.

What I claim is: An alloy consisting in substantially the proportionsherein set out, of

melted copper, and

' P rt Copper "hid/10 Tun 24 53 100 "Lead 52 10 In testimony whereof Ihave signed the foregoing specification.

enosen n. BENDER.

